diff --git a/doomsday/apps/libdoomsday/include/doomsday/filesys/datafolder.h b/doomsday/apps/libdoomsday/include/doomsday/filesys/datafolder.h
index cca03dcc8a..523736c8bb 100644
--- a/doomsday/apps/libdoomsday/include/doomsday/filesys/datafolder.h
+++ b/doomsday/apps/libdoomsday/include/doomsday/filesys/datafolder.h
@@ -36,7 +36,10 @@ class LIBDOOMSDAY_PUBLIC DataFolder : public de::Folder, public DataBundle
     DataFolder(Format format, de::File &sourceFile);
     ~DataFolder();
 
-    de::String describe() const;
+    de::String describe() const override;
+
+    // Stream access.
+    IIStream const &operator >> (IByteArray &bytes) const override;
 };
 
 #endif // LIBDOOMSDAY_DATABUNDLE_H
diff --git a/doomsday/apps/libdoomsday/src/filesys/datafolder.cpp b/doomsday/apps/libdoomsday/src/filesys/datafolder.cpp
index 15644a0f59..a2ccd6d6a9 100644
--- a/doomsday/apps/libdoomsday/src/filesys/datafolder.cpp
+++ b/doomsday/apps/libdoomsday/src/filesys/datafolder.cpp
@@ -65,3 +65,12 @@ String DataFolder::describe() const
 
     return desc;
 }
+
+IIStream const &DataFolder::operator >> (IByteArray &bytes) const
+{
+    if (source())
+    {
+        *source() >> bytes;
+    }
+    return *this;
+}